ovsdb-server: Make use of cooperative multitasking. #2014

Job	Run time
dpdk gcc	6s
linux rpm fedora	4m 57s
linux deb no dpdk	5m 52s
osx clang --disable-ssl	3m 57s
clang-analyze	17m 35s
linux gcc --disable-ssl	2m 31s
linux clang --disable-ssl	2m 23s
linux gcc c99	2m 24s
linux clang c99	2m 38s
linux gcc test	8m 7s
linux clang address,undefined test	16m 2s
linux gcc test --enable-shared	11m 11s
linux clang test --enable-shared	11m 2s
linux gcc check check-dpdk dpdk	16m 34s
linux clang check check-dpdk dpdk	16m 50s
linux gcc test -ljemalloc	8m 50s
linux clang test -ljemalloc	8m 28s
linux gcc --enable-afxdp	2m 26s
linux clang --enable-afxdp	2m 21s
linux gcc dpdk --enable-shared	3m 18s
linux clang dpdk --enable-shared	3m 16s
linux gcc dpdk-shared	2m 39s
linux clang dpdk-shared	2m 40s
linux gcc dpdk-shared --enable-shared	3m 16s
linux clang dpdk-shared --enable-shared	3m 35s
linux gcc m32 --disable-ssl	2m 34s
linux gcc check-ovsdb-cluster	6m 3s
linux gcc check-kernel -100	8m 32s
linux gcc check-kernel 100-	8m 56s
linux clang address,undefined check-kernel -100	11m 9s
linux clang address,undefined check-kernel 100-	11m 48s
linux gcc check-offloads -100	8m 47s
linux gcc check-offloads 100-	7m 23s
linux gcc dpdk check-system-userspace	11m 13s
linux clang address,undefined dpdk check-system-userspace	13m 57s
linux gcc dpdk check-system-tso	9m 30s
linux gcc dpdk check-afxdp	10m 32s
	4h 33m 22s

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